Array \ Matrix Output display formating

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Roberto Enrique Pinto Villegas
评论： Roberto Enrique Pinto Villegas 2020-6-19
For the next code
syms phi
M=exp(pi*tand(phi))*(tand(45+phi/2))^2;
phi=10:0.5:12;
for i=1:size(phi,2)
N(i)=vpa(subs(M,phi(i)));
end
the output is
[ 10, 2.4714356250900329077526825288117]
[ 21/2, 2.5879028921290203959454380144457]
[ 11, 2.7101851281117024394027253294966]
[ 23/2, 2.8386049798657898988231385226601]
[ 12, 2.973505374766345410079490037392]
how i could change the format to look like?
[ 10, 2.471]
[10.5, 2.587]
...
[ 12, 2.973]
i try
format shortG
but i think calling vpa function don't recive the format style defined before.
Thank you.
  2 个评论
Félix Fernando González Navarro
Félix Fernando González Navarro 2020-6-19
Just for fun....
clc;
syms phi
M=exp(pi*tand(phi))*(tand(45+phi/2))^2;
phi=10:0.5:12;
for i=1:size(phi,2)
N(i)=subs(M,phi(i));
if mod(phi(i),1)==0
value=sprintf('%4d',phi(i));
else
value=sprintf('%4.1f',phi(i));
end
fprintf('%s,%6.3f\n',value,subs(M,phi(i)));
end

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采纳的回答

David Hill
David Hill 2020-6-19
You could also round(x, 3) and use format shortG
format shortG;
syms phi
M=exp(pi*tand(phi))*(tand(45+phi/2))^2;
phi=10:0.5:12;
for i=1:size(phi,2)
N(i)=double(vpa(subs(M,phi(i))));
end

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